class B {
   int x = 100,y=200;
   public void setX(int x) {
      x = x;
   }
   public void setY(int y) {
      this.y = y;
   }
   public int getXYSum() {
      return x+y;
   }
}
public class A1 {
   public static void main(String args[]) {
      B b = new B();
      b.setX(-100);
      b.setY(-200);
      System.out.println("sum="+b.getXYSum());
   }
}
